首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   151篇
  免费   15篇
财政金融   26篇
工业经济   4篇
计划管理   49篇
经济学   36篇
运输经济   1篇
旅游经济   9篇
贸易经济   21篇
农业经济   2篇
经济概况   18篇
  2024年   1篇
  2023年   6篇
  2022年   1篇
  2021年   2篇
  2020年   2篇
  2019年   10篇
  2018年   9篇
  2017年   14篇
  2016年   10篇
  2015年   7篇
  2014年   10篇
  2013年   29篇
  2012年   10篇
  2011年   5篇
  2010年   10篇
  2009年   7篇
  2008年   3篇
  2007年   2篇
  2006年   3篇
  2005年   1篇
  2004年   3篇
  2003年   1篇
  2002年   1篇
  2001年   2篇
  2000年   1篇
  1999年   3篇
  1998年   1篇
  1997年   1篇
  1995年   1篇
  1994年   1篇
  1993年   2篇
  1992年   1篇
  1991年   1篇
  1985年   1篇
  1983年   1篇
  1982年   1篇
  1972年   1篇
  1967年   1篇
排序方式: 共有166条查询结果,搜索用时 31 毫秒
121.
In this paper, we investigate empirically the impact of exchange rate volatility on real international trade flows utilizing a 13‐country data set of monthly bilateral real exports for 1980–1998. We compute one‐month‐ahead exchange rate volatility from the intra‐monthly variations in the exchange rate to better quantify this latent variable. We find that the effect of exchange rate volatility on trade flows is nonlinear, depending on its interaction with the importing country's volatility of economic activity, and that it varies considerably over the set of country pairs considered. Copyright © 2003 John Wiley & Sons, Ltd.  相似文献   
122.
Zusammenfassung Kanadische Wechselkurspolitik: Intervention, Kontrolle, Kointegration. - Die Verfasser testen unter Rückgriff auf die Kointegrationstechnik und den Ansatz der optimalen Kontrolle, wie sich die offiziellen Interventionen der Bank of Canada auf den Devisenkurs zwischen dem kanadischen und amerikanischen Dollar ausgewirkt haben. Wenn sich die Bank des Ansatzes der optimalen Kontrolle bedient, um ihre Interventionen zu steuern, und keine Sterilisierungsma?nahmen anwendet, dann sind Wechselkurs, sein Zielwert und der kanadische Zinssatz im dynamischen Gleichgewicht miteinander verbunden. Die Existenz dieser dynamischen Gleichgewichtsbeziehung wird mit Hilfe von multivariaten Kointegrationsmethoden getestet und best?tigt.
Résumé Les politiques canadiennes du taux de change: intervention, contr?le, et co-intégration. - Les méthodes de contr?le optimal et de co-intégration sont utilisés pour tester l’effet de l’intervention officiel par la Banque de Canada sur le cours dollar canadien/dollar américain. Si la Banque utilise l’approche de contróle optimal pour diriger ses interventions et ne prend pas de mesures de stérilisation, il existe une relation d'équilibre dynamique entre le taux de change actuel, le taux de change désiré et le taux d'intérêt canadien. En utilisant les méthodes de co-intégration aux variables multiples, on a affirmé l’existence d'une relation d'équilibre dynamique.

Resumen Las politicas de cambio canadienses: intervention, control, cointegración.- En este trabajo se utiliza un enfoque mixto de control óptimo y cointegración para llevar a cabo un test del impacto de una interventión oficial por parte del Banco del Canada en el mercado de cambios Canadá-EE UU. Si el banco utiliza control óptimo para guiar sus politicas de interventión y no emplea procedimientos de esterilización existe una relación de equilibrio dinámica entre la tasa de cambio, su valor meta y la tasa de interés canadiense. La existencia de una relación de equilibrio dinámica es verificada empíricamente aplicando métodos multivariantes de cointegración. La hipótesis nula de no cointegración es rechazada, con lo cual se implica la existencia de un equilibrio dinámico.
  相似文献   
123.
We study how to improve the value-relevance of financial information for intangible-intensive firms by investigating two alternatives: capitalizing research and development (R&D) expenses and disclosing intangible information. Using patent counts/citations to proxy for intangible intensity, we find that the incremental value-relevance of disclosing patent counts/citations is greater than that of capitalizing R&D expenses for the high-patent group and vice versa for the low- or medium-patent group. Investors favor the disclosure of patent information for firms with more successful innovations. Since disclosing intangible information may lead to appropriation by rivals, we find that, for the high-patent group, the incremental value-relevance of disclosing patent counts/citations is more pronounced for firms in industries with stronger protection of intellectual property. Overall, our results suggest that disclosing R&D outputs can improve the value-relevance of financial statements for firms rich in intangibles and the incremental benefits of such disclosure will be greater in industries with strong protection of intellectual property.  相似文献   
124.
This study investigates the behavioral aspects of Islamic bank depositors in a dual banking system. By categorizing depositors into groups based on the amount of their deposited funds, we estimate the responses of these groups to interest rate changes. We take the findings of conventional banks as a comparative baseline and investigate the extent to which the changes in different Islamic depositor groups differ from conventional depositor groups. The findings show that depositors in both Islamic and conventional banks respond to interest rate changes. The analysis indicates that Islamic bank depositors are more responsive when their deposit sizes are larger. When Islamic bank depositors’ opportunity costs rise due to a rise in the interest rate, they do not hesitate to withdraw deposits. The relation between interest rate changes and deposits is more robust in Islamic banks than in conventional banks.  相似文献   
125.
In this study, the effect of distance on fuel mileage (fuel burn per nautical mile) and CO2 intensity, based on a large amount of actual flight data, is discussed for narrow-body commercial aircraft performing domestic flights for flight distances of between ~200 and ~800 NM, in Turkey. For twenty-nine domestic routes, the average CO2 intensity is calculated to be 88 gr/pa-km, with an 80% load factor, ranging from between 112 gr/pa-km (207 gr/pa-NM) for the shortest route and 78 gr/pa-km (145 gr/pa-NM) for the longest route. An overall runway-to-runway analysis reveals that the average flight fuel consumption increases by 5.1 kg for each additional nautical mile. The discussion is extended to cover wind effect, through westbound and eastbound flights, on fuel consumption. The average fuel mileage of the eastbound flights, above 30 kft, is found to be 11.2% lower than those for the westbound flights. A sensitivity analysis is also carried out to reveal the effects of three main flight performance parameters, namely, cruise altitude, cruise speed and aircraft mass on the cruise CO2 intensity.  相似文献   
126.
This article underlines the existing similarities between Samuel Huntington's civilizational approach hypothesis and the fundamentals of political Islam. The similarity pertains to the argument related to the gradual weakening of nation-states, which also constitutes the main theme of the globalization debate. The civilizational approach and political Islam signify new efforts to reach a much larger political community and organization in world politics. Both of them argue that the formation of new political actor(s) is replacing the old nation-states across religious and cultural affinities. The terrorist organization Al-Qaeda is trying to legitimize its political violence by manipulating the weakness of the nation-states and the utopia of the formation of a much more comprehensive political community and political organization through Islam. Huntington's clash of civilizations thesis indirectly provides a base for Al-Qaeda's rhetoric and a certain type of justification for its terror activities, since the theory argues for the inevitability of the conflict between civilizations, regardless of their political regimes (liberal or totalitarian) with civilizations being determined by their cultural and religious differences—a theme that is used by the ideologues of political Islam.  相似文献   
127.
The convergence versus divergence debate has persistently presented a puzzle in the scholarly literature. Forces of globalization created a wave of convergence. Yet, the recent worldwide events have changed the course of globalization, slowing its seemingly unavoidable forward direction. It is, therefore, incumbent upon international business scholars to reexamine the convergence versus divergence debate in the contemporary world economy. Despite the central role that global convergence plays in international business decisions, the literature is lacking a conceptualization of the convergence construct in terms of consumer spending behavior. Offering a new perspective derived from the convergence-divergence-crossvergence (CDC) framework and the coevolution theory, the authors define and conceptualize the convergence construct associated with consumer spending behavior. The proposed conceptual framework is comprehensive, offers refinements to the convergence phenomenon, and leads the way for further development of new theories in the international marketing domain.  相似文献   
128.
Corporate entrepreneurship (CE) research has reached a certain degree of consensus around five core internal antecedents that enable CE, but consensus remains focused on large‐sized firms in Western economies. Using institutional theory, we argue that contextual factors may undermine the viability of internal antecedents in emerging economy contexts. Our qualitative study shows that the organization of the internal environments for CE among service sector Kenyan SMEs is much more interactive and complex than currently presented in the literature. Specifically cultural and contextual factors appear to influence the extent to which the antecedents are able to produce CE activity. Our findings provide a more fine‐grained depiction of the internal environment for CE in emerging economy SMEs.  相似文献   
129.
Abstract

The purpose of this study is to find a portfolio that maximizes the risk-adjusted returns subject to constraints frequently faced during portfolio management by extending the classical Markowitz mean–variance portfolio optimization model. We propose a new two-step heuristic approach, GRASP & SOLVER, that evaluates the desirability of an asset by combining several properties about it into a single parameter. Using a real-life data set, we conduct a simulation study to compare our solution to a benchmark (S&P 500 index). We find that our method generates solutions satisfying nearly all of the constraints within reasonable computational time (under an hour), at the expense of a 13% reduction in the annual return of the portfolio, highlighting the effect of introducing these practice-based constraints.  相似文献   
130.
Open Economies Review - In this paper, we re-examine the relationship between trade flows, real effective exchange rates, and incomes by using the bilateral trade flows of 33 countries that form...  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号